Vacuum condensation system



July 25, 1933. v. ROSENHAGEN I VACUUM CoNDENsATIoN SYSTEM Filed April 4,1952 .-iV Vl'cor Rosen/myn:

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Patented July 25, i933 UNITED, STATES www VICTOR ROSENHAGEN, orBELLnvUE, KENTUCKY, AssIGivoR" 'ro 'THE BREESE BROTHERS COMPANY, OF,CINCINNAT, OHIO, A COVRPORATION-OF OHIO VACUUM ,CONDENSATION SYSTEM Thisinvention relates to a vacuum condensation system especially applicableinl steam heating installations.`

An object of the invention is to provide such a system operableunderplow steam pressure.

Another' object is to provide novel 4. valve means controllingoperations of the vacuumk View of an installation of the invention,With` partsbroken away.. l v `f t Fig. 2 is a vertical cross 'sectionalview of the thermostatic' control vmeans utilized in the presentinvention. A t 1 Fig. 3 is a vertical cross sectional view of a portionof the vacuum creating `means utilizedherein.

. Fig. 4 is an elevational View, partly in 'cross section and partlybroken away, of the auto- -matic valve means for separately introducingliquid condensation and return air or vapor into the return depository.i

Fig. 5 is across sectional View taken on With reference to lthe drawingfA boiler or steam source is provided, from which steam under pressure issupplied through a suitable line 11 to the radiators of a heatingsystem, one of the` radiatorsy valve 38 which preventssteam aboveatmos-` being indicated 'at 12.` i

Vacuum creating means are provided for drawing air and liquidcondensation from the system. These means comprise a circulation tank 13and a vacuum chamber 14.

The circulation tank 13 is maintained substantially half full of wateras indicated at 15 for' supplying a centrifugal pump `16 positionedlaterally of and in communication with the interior of tank 13. Pump 16may be drivenby a suitable motor 17 vThe tank or condensation pumpcommunicates by a pipe 18 with the interior of circulation tank 13 atthe top thereof.` Between the lower endof pipe 18 and motor 17 isinterposed vacuum creating mcansq19. `This means comprisesanejector orvnozzle 20 l(Fig. '3). proJecting into 'a vac- `uum chamber 2l and`directing i a forced stream of water into a restricted receiver 22,

vmay be provided.V `.Said line extends into the condensation chamber 14,ythrough the `top thereof, and terminates Iin an open "end: 24,l

disposed substantially-half way .down said chamber.4 iti-volumeof-waterin chamber 14` has its lowestlevel ydisposed..immediatelybeneath the openy end24'of line 23said water serving as a sealthroughvwhich all air,

drawn from tlie'hcating system through the intake pipe 2, must pass. Inthis way, the

f steam or vapor from the heating system be'- comes condensed, sincetheintake port 260 is disposed at the bottom'o chamber'll.-`

The return pipe 27=of the heating systemy communicates at its innerendwithjthe enclosing chamber 28 of afloat valve 29; When suiiicient liquidcondensation has been ltaken intofchamberf 28 fto" -loat the valve 29,the latter"l rises -fromitsfseat 'V30 (Fig.v 4) and admits thecondensation into the pipe 31 which communicates as at 32 with intakepipe2'6. The intake pipe 26 isof such lengthk as to ef- `feet suHicientcooling of the `condensation for precluding return thereof to asteamstate withinthe condensation chamber 14. When no liquid condensation is`present in `valve chamber 28, 4therfloaft 29 drops to" position uponits `seat`30,` Atv this Atimethe air passing through the heating systemis drawn into the 'lower end of a tube 35. Before entering said tube,the induced air passes through a casing 37 (Fig. 2) surrounding athermostatic pheric pressure `from entering the chamber 14 and whichcloseswhen the temperature'fof the f entering air exceeds 212 degreesbut remains' partly open at a temperature' of about` 200` degrees.l f

logs)l tiljthe level 25 is restored,l saidv drawn Water passing throughvacuum 'line'.2l3. to enter the vacuum chamber 21 Where it Joins withthewater` bein.

circulation tank 13.

forced through pipe 18' into the il r i e 10o As'heretofore explained,the liquid con- 1 sure is reduced to a different predetermined amount;

3. In a device of the class described the combination of a vacuumcondensation chamber having a water seal, power actuated means forexhausting air and Water from said cha-mber, means for `connection witha return pipe of a low pressure heating system whereby condensation isaccumulated for intermittent discharge into the condensation chamberbelow the water seal, other means including a therinostatic valve fornormally exhausting air and low temperature vapor from the return pipeto said condensation chamber below said water seal and vacuum controlledswitch and circuit means energizing and de-energizing the power means'atpredetermined degrees of low and high evacuation of said vacuumcondensation chamber whereby air may be Withdrawn from thesystem afterthe 'power means is deenergized.

4. Vacuum condensationvmeans for low pressure steam heat systems andcomprising a condensation chamber having a water seal therein, vacuumcreating means for drawing air and liquid condensation from the systemthrough said water seal into said chamber, said means being' adapted tocreate a static vacuum above the Water seal in said chamber, meanssuccessively stoppingand starting sation and of induced air of greaterthan ay given temperature, means for discharging from the condensationchamber the excess of water above the volume constituting the waterseal, and means cooling the liquid condensation before entrythereof-into the condensation chamber.

5. Vacuum condensation means for a steam heat system and comprising atank, an over- How pipe therein, means for drawing air and liquidcondensation from the system into the tank, and valve means associatedwith the tankand comprising an air vent normally permitting escape ofindrawn air, a valve controlling communication of the vent with thetank, and a float having a lost motion connection with said valve andadapted, vupon rise of the liquid condensation inthe'tank above aselected level, to close the valve whereby the pressure of indrawn aireffectsl scend wherebyxan effective evacuation of excess liquidcondensation is attained.

6. The combination with a steam heatisyssationchamber, of means foreffecting intertem or the like comprising a vacuum conden-` mittentVdischarge of liquid condensation from the system into said chamber andcomprising a valve chamber communicating with y the return pipe of theheat system and with` said condensation chamber, said valve cham-- berhaving a valve seat in the bottomthereof and a ioat valve thereinadapted normallyto remain positioned in said seat and to be displacedfrom said seat for permitting access' into the condensation chamber onlyupon accumulation in the valve chamber ofl a' given volume of liquidcondensation.

7. The combination in asteam heat syst-em orthe like, ofa vacuumcondensation chamber having an inlet port adjacent the bottom thereofand a water seal "in the chamber for said port, an inlet pipecommunicating with i said chamber through said port and extending` abovethe level of said water seal, a return pipe in the system, a float valvemechanism communicating with the return pipe and with'the lower outerportion of said inlet pipe and precluding entry into the inlet n pipe ofless than a given accumulated volume of liquid condensation, meansassociated with the inlet pipe for cooling condensation therein topreclude return thereof to a steam con dition within the condensationchamber, and

a thermostatic valve communicating with said return pipe and havingtubular connection with the upper portion of the inlet pipe,`

said thermostatic valve being operative when the io'at valve is closedfor admitting air-of y less than a' predetermined temperature into theinlet pipe and forexcluding therefrom air of greater than apredeterminedtemperature. l l

8. The combi-nation in a steam heat system or the like of a vacuumLcondensationchamber having an inlet port adjacent the vbottom thereofand a water seal for the port in the c; chamber, an inlet pipecommunicating with said port, areturnpipe in the system, afloat valvemechanism communicating with the return and inlet pipes and precludingentry `into the inlet pipe of less than asubstantial accumulation ofcondensation, said inlet pipe `being of sulicient length for coolingthe, condensation before entry thereof into said chamber, and athermostatic valve and casv ing communicating with the `return and inletpipes and adapted Ato admit air of less than a predeterminedItemperature into the inlet pipe and to exclude therefrom air of ygreater than a predetermined temperature.

VICTOR ROSENHAGEN.

